diff options
| author | jhb <jhb@FreeBSD.org> | 2016-04-09 13:58:04 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2016-04-09 13:58:04 +0000 |
| commit | 6beb82443a9241c4c9035f9b1df9d1358154592c (patch) | |
| tree | cd8ee1473372af94096c75121cdad26c77602e58 /sys/conf | |
| parent | ae5846b336d36050c2a80b867d117f4bf2f3d907 (diff) | |
| download | FreeBSD-src-6beb82443a9241c4c9035f9b1df9d1358154592c.zip FreeBSD-src-6beb82443a9241c4c9035f9b1df9d1358154592c.tar.gz | |
Add more fine-grained kernel options for NUMA support.
VM_NUMA_ALLOC is used to enable use of domain-aware memory allocation in
the virtual memory system. DEVICE_NUMA is used to enable affinity
reporting for devices such as bus_get_domain().
MAXMEMDOM must still be set to a value greater than for any NUMA support
to be effective. Note that 'cpuset -gd' always works if MAXMEMDOM is
enabled and the system supports NUMA.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D5782
Diffstat (limited to 'sys/conf')
| -rw-r--r-- | sys/conf/NOTES | 10 | ||||
| -rw-r--r-- | sys/conf/options | 2 |
2 files changed, 11 insertions, 1 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES index 42570fe..ec5618c 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -229,7 +229,15 @@ options MAXCPU=32 # MAXMEMDOM defines the maximum number of memory domains that can boot in the # system. A default value should already be defined by every architecture. -options MAXMEMDOM=1 +options MAXMEMDOM=2 + +# VM_NUMA_ALLOC enables use of memory domain-aware allocation in the VM +# system. +options VM_NUMA_ALLOC + +# DEVICE_NUMA enables reporting of domain affinity of I/O devices via +# bus_get_domain(), etc. +options DEVICE_NUMA # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin # if the thread that currently owns the mutex is executing on another diff --git a/sys/conf/options b/sys/conf/options index f2fef26..2283705 100644 --- a/sys/conf/options +++ b/sys/conf/options @@ -90,6 +90,7 @@ COMPAT_LINUXKPI opt_compat.h COMPILING_LINT opt_global.h CY_PCI_FASTINTR DEADLKRES opt_watchdog.h +DEVICE_NUMA EXT_RESOURCES opt_global.h DIRECTIO FILEMON opt_dontuse.h @@ -603,6 +604,7 @@ VM_KMEM_SIZE opt_vm.h VM_KMEM_SIZE_SCALE opt_vm.h VM_KMEM_SIZE_MAX opt_vm.h VM_NRESERVLEVEL opt_vm.h +VM_NUMA_ALLOC opt_vm.h VM_LEVEL_0_ORDER opt_vm.h NO_SWAPPING opt_vm.h MALLOC_MAKE_FAILURES opt_vm.h |
